Ventilator



Dec. 29 1925- L. S. RYSDON VENTILATOR .s'don/ INVENTOR ATTORNEY PatentedDec. 29, 1925.

LOUIS S. RYSDON, OF CHICAGO, ILLINOIS.

VENTILATOR.

Application filgd October 17, 1923. Serial No. 669,145.

To all whom it may concern:

Be it known that I, LoUIs S. RYsDoN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in Ventilators, of which thefollowing is a specification.

This invention relates to a ventilator and has for its primaryobject'the construction of a ventilator which will more efficientlyventilate a room and which will positively prevent downdrafts.

An object of the invention is the ar rangement of the various passagesso that the circulation of outside air will facilitate the ventilationof a building.

A feature of the invention is the manner of arranging the variouselements so that the circulation of outside air will tend to create avacuum in the throat of the ventilator to provide proper draft and insuch a manner that outside circulating air will be positively preventedfrom entering the throat.

With these and other objects in view the invention will be betterunderstood from the following detailed description taken in connectionwith the accompanying drawing wherein Fig. 1 is a vertical sectionalView of a portion of a ventilator constructed in accordance with myinvention.

Fig. 2 is a top plan view of a portion of a ventilator constructed inaccordance with my invention.

Again referring to the drawing illus-' trating one of the manyconstructions of my invention the numeral 1 designates a body or casingof the ventilator forming a throat 2 and chamber 3. The chamber 3 may beprovided with or without a deflector 4. Extending downwardly from thecasing and continuous thereof is an upper flange 5 while the lowerflange 6 is similarly positioned so that between these flanges is formeda downwardly extending radial passage 7 that is subdivided by partitions8 secured to the flanges. A vertical upper flange 9, a continuation ofthe'flange 5, 15 formed, and in alignment with this flange I arrange avertical lower flange 10, a continuation of the flange 6. An outer band11 is provided which issecured to the flanges heretofore described bythe bracket .12. Thus it Wlll be seen a vertical annular passage 13 isprovided in communication with the passage 7 in a manner that outsideair may circulate through the passage 13 to create an action to draw airthrough the throat, chamber and passage 7. This is accomplished in amanner that outside air is prevented from moving forward through thepassage 7 to cause a downdraft. It will be apparent from the foregoingdescription that any downward draft will be prohibited due to the factthat the air passes through the passage 13 either going upwardly ordownwardly creating a draft it will draw air outwardly through thepassage 7 from the interior of the casing. This circulation of airthrough the annular passage or chamber 13 will reduce to a minimum theinlet of air through the passage 7 and create a suction or draft to drawthe air outwardly from within the casing 2.

To complete the invention I provide, drain holes 14 at the properpoints.

It is, of course, to be understood the invention may be constructed invarious other manners and the parts associated in other re lations,therefore, I do not desire to be limited in any manner except as setforth in the claim hereunto appended.

Having thus described my invention what I claim is: f

A ventilator comprising a casing forming a throat, and a chamber abovethe throat,

a deflector in the chamber, an annular upper flange extending from thecasing downwardly, a lower annular flange extending from the casingdownwardly and parallel to the other flange to form a downwardlyextending passage, partitions supported by the said flanges tosub-divide said passage, an inner vertical flange extending upwardlyfrom said upper flange, a lower inner flange extending from said firstmentioned lower flange, and an outer band supported by said upper andlower flange and forming a vertically extending annular passage incommunication with said first passage.

In testimony whereof I affix my signature.

LOUISS. RYSDON.

